Neck wood combo's wenge/ebony vs. wenge/wenge

I'm spec'ing out my next custom built bass and was wondering what fello TB'ers that was the best neck wood combo. I'm going for growly aggressive tone with plenty of mid-range to cut though the mix. Thanks in advanced and please state why you like a certain neck wood combo.

Like I have never tried a wenge/ebony neck but my main bass is wenge/wenge and it is great. I really like the feel of the wenge, and the bass sounds good, how much of that is the neck I don't know, but it sounds great.

Thanks guys for the advice I've never felt a wenge FB but would like to. Is there any other wood combo I should cosider (bubinga/wenge, etc.). Side note what soild body wood would work best to compliment the neck; bubinga, walnut, paduk, etc.